package com.gdou.taolele.product.service.impl;

import com.alibaba.fastjson.TypeReference;
import com.baomidou.mybatisplus.core.toolkit.StringUtils;
import com.gdou.common.constant.ProductConstant;
import com.gdou.common.to.SkuHasStockVo;
import com.gdou.common.to.SkuReductionTo;
import com.gdou.common.to.SpuBoundTo;
import com.gdou.common.to.es.SkuEsModel;
import com.gdou.common.utils.R;
import com.gdou.taolele.product.entity.*;
import com.gdou.taolele.product.feign.CouponFeignService;
import com.gdou.taolele.product.feign.SearchFeignService;
import com.gdou.taolele.product.service.*;
import com.gdou.taolele.product.vo.*;
import com.gdou.taolele.product.feign.WareFeignService;
import lombok.RequiredArgsConstructor;
import org.springframework.beans.BeanUtils;
import org.springframework.stereotype.Service;

import java.math.BigDecimal;
import java.util.*;
import java.util.stream.Collectors;

import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.gdou.common.utils.PageUtils;
import com.gdou.common.utils.Query;

import com.gdou.taolele.product.dao.SpuInfoDao;
import org.springframework.transaction.annotation.Transactional;


@Service("spuInfoService")
@RequiredArgsConstructor
public class SpuInfoServiceImpl extends ServiceImpl<SpuInfoDao, SpuInfoEntity> implements SpuInfoService {

    private final SpuInfoDescService spuInfoDescService;

    private final SpuImagesService imagesService;

    private final AttrService attrService;

    private final ProductAttrValueService attrValueService;

    private final SkuInfoService skuInfoService;

    private final SkuImagesService skuImagesService;

    private final SkuSaleAttrValueService skuSaleAttrValueService;

    private final CouponFeignService couponFeignService;

    private final BrandService brandService;

    private final CategoryService categoryService;

    private final ProductAttrValueService productAttrValueService;

    private final WareFeignService wareFeignService;

    private final SearchFeignService searchFeignService;

    @Override
    public PageUtils queryPage(Map<String, Object> params) {
        IPage<SpuInfoEntity> page = this.page(
                new Query<SpuInfoEntity>().getPage(params),
                new QueryWrapper<SpuInfoEntity>()
        );

        return new PageUtils(page);
    }

    @Override
    @Transactional(rollbackFor = Exception.class)
    public void saveSpuInfo(SpuSaveVo vo) {
         //1、保存spu基本信息 pms_spu_info
         SpuInfoEntity infoEntity = new SpuInfoEntity();
         BeanUtils.copyProperties(vo,infoEntity);
         infoEntity.setCreateTime(new Date());
         infoEntity.setUpdateTime(new Date());
         this.saveBaseSpuInfo(infoEntity);

         //2、保存Spu的描述图片 pms_spu_info_desc
         List<String> decript = vo.getDecript();
         SpuInfoDescEntity descEntity = new SpuInfoDescEntity();
         descEntity.setSpuId(infoEntity.getId());
         descEntity.setDecript(String.join(",",decript));
         spuInfoDescService.saveSpuInfoDesc(descEntity);


         //3、保存spu的图片集 pms_spu_images
         List<String> images = vo.getImages();
         imagesService.saveImages(infoEntity.getId(),images);


         //4、保存spu的规格参数;pms_product_attr_value
         List<BaseAttrs> baseAttrs = vo.getBaseAttrs();
         List<ProductAttrValueEntity> collect = baseAttrs.stream().map(attr -> {
             ProductAttrValueEntity valueEntity = new ProductAttrValueEntity();
             valueEntity.setAttrId(attr.getAttrId());
             AttrEntity id = attrService.getById(attr.getAttrId());
             valueEntity.setAttrName(id.getAttrName());
             valueEntity.setAttrValue(attr.getAttrValues());
             valueEntity.setQuickShow(attr.getShowDesc());
             valueEntity.setSpuId(infoEntity.getId());

             return valueEntity;
         }).collect(Collectors.toList());
         attrValueService.saveProductAttr(collect);


//         //5、保存spu的积分信息；gulimall_sms->sms_spu_bounds
//         Bounds bounds = vo.getBounds();
//         SpuBoundTo spuBoundTo = new SpuBoundTo();
//         BeanUtils.copyProperties(bounds,spuBoundTo);
//         spuBoundTo.setSpuId(infoEntity.getId());
//         R r = couponFeignService.saveSpuBounds(spuBoundTo);
//         if(r.getCode() != 0){
//             log.error("远程保存spu积分信息失败");
//         }


         //5、保存当前spu对应的所有sku信息；

         List<Skus> skus = vo.getSkus();
         if(skus!=null && skus.size()>0){
             skus.forEach(item->{
                 String defaultImg = "";
                 for (Images image : item.getImages()) {
                     if(image.getDefaultImg() == 1){
                         defaultImg = image.getImgUrl();
                     }
                 }

                 SkuInfoEntity skuInfoEntity = new SkuInfoEntity();
                 BeanUtils.copyProperties(item,skuInfoEntity);
                 skuInfoEntity.setBrandId(infoEntity.getBrandId());
                 skuInfoEntity.setCatalogId(infoEntity.getCatalogId());
                 skuInfoEntity.setSaleCount(0L);
                 skuInfoEntity.setSpuId(infoEntity.getId());
                 skuInfoEntity.setSkuDefaultImg(defaultImg);
                 //5.1）、sku的基本信息；pms_sku_info
                 skuInfoService.saveSkuInfo(skuInfoEntity);

                 Long skuId = skuInfoEntity.getSkuId();

                 List<SkuImagesEntity> imagesEntities = item.getImages().stream().map(img -> {
                     SkuImagesEntity skuImagesEntity = new SkuImagesEntity();
                     skuImagesEntity.setSkuId(skuId);
                     skuImagesEntity.setImgUrl(img.getImgUrl());
                     skuImagesEntity.setDefaultImg(img.getDefaultImg());
                     return skuImagesEntity;
                 }).filter(entity->{
                     //返回true就是需要，false就是剔除
                     return !StringUtils.isEmpty(entity.getImgUrl());
                 }).collect(Collectors.toList());
                 //5.2）、sku的图片信息；pms_sku_image
                 skuImagesService.saveBatch(imagesEntities);
                 //TODO 没有图片路径的无需保存

                 List<Attr> attr = item.getAttr();
                 List<SkuSaleAttrValueEntity> skuSaleAttrValueEntities = attr.stream().map(a -> {
                     SkuSaleAttrValueEntity attrValueEntity = new SkuSaleAttrValueEntity();
                     BeanUtils.copyProperties(a, attrValueEntity);
                     attrValueEntity.setSkuId(skuId);

                     return attrValueEntity;
                 }).collect(Collectors.toList());
                 //5.3）、sku的销售属性信息：pms_sku_sale_attr_value
                 skuSaleAttrValueService.saveBatch(skuSaleAttrValueEntities);

//                 // //5.4）、sku的优惠、满减等信息；gulimall_sms->sms_sku_ladder\sms_sku_full_reduction\sms_member_price
//                 SkuReductionTo skuReductionTo = new SkuReductionTo();
//                 BeanUtils.copyProperties(item,skuReductionTo);
//                 skuReductionTo.setSkuId(skuId);
//                 if(skuReductionTo.getFullCount() >0 || skuReductionTo.getFullPrice().compareTo(new BigDecimal("0")) == 1){
//                     R r1 = couponFeignService.saveSkuReduction(skuReductionTo);
//                     if(r1.getCode() != 0){
//                         log.error("远程保存sku优惠信息失败");
//                     }
//                 }
             });
         }
    }

    @Override
    public void saveBaseSpuInfo(SpuInfoEntity infoEntity) {
        this.baseMapper.insert(infoEntity);
    }

    @Override
    public PageUtils queryPageByCondition(Map<String, Object> params) {
        QueryWrapper<SpuInfoEntity> wrapper = new QueryWrapper<>();

        String key = (String) params.get("key");
        if (!StringUtils.isEmpty(key)) {
            wrapper.and((w) -> {
                w.eq("id", key).or().like("spu_name", key);
            });
        }
        // status=1 and (id=1 or spu_name like xxx)
        String status = (String) params.get("status");
        if (!StringUtils.isEmpty(status)) {
            wrapper.eq("publish_status", status);
        }

        String brandId = (String) params.get("brandId");
        if (!StringUtils.isEmpty(brandId) && !"0".equalsIgnoreCase(brandId)) {
            wrapper.eq("brand_id", brandId);
        }

        String catelogId = (String) params.get("catelogId");
        if (!StringUtils.isEmpty(catelogId) && !"0".equalsIgnoreCase(catelogId)) {
            wrapper.eq("catalog_id", catelogId);
        }

        /**
         * status: 2
         * key:
         * brandId: 9
         * catelogId: 225
         */

        IPage<SpuInfoEntity> page = this.page(
                new Query<SpuInfoEntity>().getPage(params),
                wrapper
        );

        return new PageUtils(page);
    }

    @Override
    public void up(Long spuId) {
        //1、查出当前spuId对应的所有sku信息,品牌的名字
        List<SkuInfoEntity> skuInfoEntities = skuInfoService.getSkusBySpuId(spuId);
        //TODO 4、查出当前sku的所有可以被用来检索的规格属性
        List<ProductAttrValueEntity> productAttrValueEntities = productAttrValueService.list(new QueryWrapper<ProductAttrValueEntity>().eq("spu_id", spuId));
        List<Long> attrIds = productAttrValueEntities.stream().map(ProductAttrValueEntity::getAttrId).collect(Collectors.toList());
        List<Long> searchIds=attrService.selectSearchAttrIds(attrIds);
        Set<Long> ids = new HashSet<>(searchIds);
        List<SkuEsModel.Attr> searchAttrs = productAttrValueEntities.stream().filter(entity -> ids.contains(entity.getAttrId())).map(entity -> {
            SkuEsModel.Attr attr = new SkuEsModel.Attr();
            BeanUtils.copyProperties(entity, attr);
            return attr;
        }).collect(Collectors.toList());


        //TODO 1、发送远程调用，库存系统查询是否有库存
        Map<Long, Boolean> stockMap = null;
        try {
            List<Long> longList = skuInfoEntities.stream().map(SkuInfoEntity::getSkuId).collect(Collectors.toList());
            R skuHasStocks = wareFeignService.getSkusHasStock(longList);
            stockMap = skuHasStocks.getData(new TypeReference<List<SkuHasStockVo>>(){}).stream().collect(Collectors.toMap(SkuHasStockVo::getSkuId, SkuHasStockVo::getHasStock));
        }catch (Exception e){
            log.error("远程调用库存服务失败,原因{}",e);
        }

        //2、封装每个sku的信息
        Map<Long, Boolean> finalStockMap = stockMap;
        List<SkuEsModel> skuEsModels = skuInfoEntities.stream().map(sku -> {
            SkuEsModel skuEsModel = new SkuEsModel();
            BeanUtils.copyProperties(sku, skuEsModel);
            skuEsModel.setSkuPrice(sku.getPrice());
            skuEsModel.setSkuImg(sku.getSkuDefaultImg());
            //TODO 2、热度评分。0
            skuEsModel.setHotScore(0L);
            //TODO 3、查询品牌和分类的名字信息
            BrandEntity brandEntity = brandService.getById(sku.getBrandId());
            skuEsModel.setBrandName(brandEntity.getName());
            skuEsModel.setBrandImg(brandEntity.getLogo());
            CategoryEntity categoryEntity = categoryService.getById(sku.getCatalogId());
            skuEsModel.setCatalogName(categoryEntity.getName());
            //设置可搜索属性
            skuEsModel.setAttrs(searchAttrs);
            //设置是否有库存
            skuEsModel.setHasStock(finalStockMap==null?false:finalStockMap.get(sku.getSkuId()));
            return skuEsModel;
        }).collect(Collectors.toList());

        //TODO 5、将数据发给es进行保存：taolele-search
        R r = searchFeignService.saveProductAsIndices(skuEsModels);
        if (r.getCode()==0){
            this.baseMapper.updateSpuStatus(spuId, ProductConstant.StatusEnum.SPU_UP.getCode());
        }else {
            // 远程调用失败 TODO 接口幂等性 重试机制
            /**
             * Feign 的调用流程  Feign有自动重试机制
             * 1. 发送请求执行
             * 2.
             */
            log.error("商品远程es保存失败");
        }
    }

    @Override
    public SpuInfoEntity getSpuInfoBySkuId(Long skuId) {
        return getById(skuInfoService.getById(skuId).getSpuId());
    }


}